/Engine/Source/Runtime/Renderer/Public/InstanceCulling/InstanceCullingContext.h
Command that is executed in the per-view, post-cull pass to gather up the instances belonging to this primitive. Multiple commands may add to the same slot, ordering is not preserved.
void AddInstanceRunsToDrawCommand ( uint32 IndirectArgsOffset, int32 InstanceDataOffset, const uint32 * Runs, uint32 NumRuns, [EInstanceFlags](API\Runtime\Renderer\InstanceCulling\FInstanceCullingContext\EInstanceFlags) InstanceFlags )